If you travel through Hyde Park there is a beautiful avenue of Sweet Chestnut trees (about a hundred) just north of the Rotten Row cycle path and just south of the Serpentine. They are ripe and ready. Take leather gloves for plucking them off the tree and roll the husks under foot to get the nuts out. I got a carrier bag full on Tuesday. The only other pickers were some Italian building workers in their lunch hour and the Serpentine geese are foraging too. Follow the geese for the trees where they are dropping of their own accord. Plenty for everyone right now.